LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Cam for stock heads

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Old 07-03-2005, 06:31 PM
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Default Cam for stock heads

I have the Hotcam now, I'm just wondering if I will see some if any gain by going with a custom grind or something like the CC306 or GM847? it will be tuned for it of course after it's in. Just wondering if there is any benefit to go with the bigger cam on stock heads?
Old 07-03-2005, 09:02 PM
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You can go bigger, i think some guys with the GM 847 made over 350RWHP on stock heads.

But realize by going bigger you are going to have to spin the car to 6500+ RPMs and are going to loose alot of low-end and hence drivability.
Old 07-03-2005, 10:55 PM
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What type of transmission do you have? If you have an A4, your gonna need to get a decent stall with a bigger cam like the CC306 or GM847. Thru an M6, people have gotten 380 RWHP with just the GM847 and boltons
Old 07-03-2005, 11:08 PM
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using your stock valvetrain? or have you upgraded oyur rockers,push's,and springs,lifters?
Old 07-04-2005, 01:32 AM
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all the valvetrain is upgraded right now to the hotcam kit 1.6 rockers springs retainers etc new pushrods lifters etc.

I have a M6

so the cc306 would probably be my best bet for HP and retaining some streetablility?
Old 07-04-2005, 10:41 AM
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no, go GM847. It's cheaper ($209), more advanced, makes better power, and the cams are so similiar its stupid not to.
Old 07-04-2005, 01:19 PM
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does anyone have a soundclip of these 2 dif cams?..i checked on ls1sounds and not too many lt1's on there..ill be in the same boat this guy is soon..
Old 07-04-2005, 01:39 PM
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Go bigger than what you have, the GM cam will have a pretty good lope to it, just as long as you get a damn good tune, you'll be fine..Might have to upgrade injectors with a cam that size..30#'s would be fine.
Old 07-04-2005, 02:44 PM
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link to where this cam in only 209?

I haven't even seen specs onthis cam.
Old 07-04-2005, 08:02 PM
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www.samtaylor.com.....ask for Jason Cromer...$209. I don't have specs off hand. CC306'ish but bigger by a tad and better ramp rates.
Old 07-04-2005, 10:24 PM
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I have heard though since I have the "Hotcam kit GM" rockers 1.6 I can't run them past like .575 lift?
is this true?
and the lift on the GM847 cam will be close to 600 with 1.6's
Old 07-05-2005, 12:42 AM
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I have the cc306 personally, and like it. I have no experience with the 847 but have seen some good numbers with it. You will be happy with either cam i am sure.
Old 07-05-2005, 08:02 AM
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I think the specs are something like 234/242- 570'ish/590'ish -112 lsa..I've also seen this cam on a 110 lsa, which is what Id get since you have an M6..IMO.
Old 07-05-2005, 08:34 AM
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The crane cam version is .575/.595 on a 112 LSA with 1.6 rockers and runs about $240 from summit
Old 07-05-2005, 05:44 PM
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anyone know the answer to my rocker question?
Old 07-05-2005, 05:47 PM
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i've never heard of rockers having limits of lift amounts.. maybe with the springs you cant go past .575 but if you switched cams you probably would want to switch springs to be on the safe side.
Old 07-05-2005, 07:17 PM
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oh I plan on switching springs I just thought I read the hotcam rockers had a limit I thought
Old 07-05-2005, 07:26 PM
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i never heard that but i could be wrong.. im gonna have to look into that.
Old 07-05-2005, 08:30 PM
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Originally Posted by Jordan57
www.samtaylor.com.....ask for Jason Cromer...$209. I don't have specs off hand. CC306'ish but bigger by a tad and better ramp rates.

How much was it shipped? that is a bad *** price compared to what I found
Old 07-05-2005, 09:13 PM
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"These small-block 1.6:1 ratio aluminum rockers are similar to the rockers used in the 1996 Corvette LT4 engine, except the trunnions have been machined for early model 3/8" rocker studs. These kits of 16 rockers includes nuts and instruction sheets. They are self aligning-style rockers with washers between the rollers and the rocker body for improved wear characteristics. Reducing the length of the rocker stud slots improves the stiffness by 30% over comparable aftermarket designs. These rockers will accommodate up to .575" valve lift. One of the main advantages of these rockers is about 2 ft/lb in rotation torque which provides a quieter idle."

just what I found so I guess I would be selling my entire hotcam kit for new either 1.5 or 1.6 rockers springs retainers and GM847 probably


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